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Finger guide device

A finger guide device that positions a finger (or minutiae containing digit) of a human subject on a fingerprint sensor in a manner optimal for the data capture operation of authentication or identification of said subject wherein a relevant portion of the finger is in alignment with a sensor or scanner. Authentication or identification takes place by fingerprint matching. The finger guide device may also be used for enrollment of the initial fingerprint data into the system through one or more readings of the fingerprint and translation into a template for future comparison matching. The finger guide device may also serve to provide temperature or temperature equivalent tactile feedback or other forms of feedback to a user. The finger guide device may also contain an outer surface ridge which feels somewhat uncomfortable due to application of a high pressure per square inch on small areas of the finger when the finger is incorrectly positioned to encourage correct placement of the finger, which is more comfortable. The finger guide device may have a curved inside surface to contour to a wide variety of fingertip shapes and sizes, wherein the sides and front have shorter radii of curvature than the rearward portion of the finger guide device. The front of the finger guide device may have sufficient steepness of its sides and shortness of radius of curvature in order to serve as a stop positioning the tip of the finger approximately between 0.20 and 0.90 inch ahead of the center of the sensor. This is an ideal position to enroll and later to authenticate or identify a subject user. The finger guide device material or surface may be electrically conductive and thereby serve as a means to transmit a driver signal to the finger tissue to facilitate the improved use of capacitive or other types of electronic or electromagnetically operated fingerprint sensors requiring this electrical potential sensing means. Additional tactile enhancements such as twin positioning bumps or Braille or audio or mechanical motion or visual marking or indicator light feedback may be added within the finger guide device if desired. The level of the fingerprint sensor or scanner may be raised or lowered as an additional enhancement to alter the data capture characteristics. The finger guide device may be used in communication with electromechanical devices to serve the additional purpose of functioning as a switch or pointing device.
Owner:UNITED STATES CP LLC

Down filling machine

The invention discloses a down filling machine, which comprises a down storage box, weighing cabinets, down filling pipes and a programmable controller, wherein the down storage box is provided with at least two weighing cabinets; at least two weighing boxes are arranged in each weighing cabinet; the total number of the weighing boxes is equal to the total number of down outlets of the down storage box; each weighing cabinet is provided with at least one down filling pipe; the total number of the weighing boxes in each weighing cabinet is dual, and the number of the down filling pipes is a half of the total number of the weighing boxes. According to the down filling machine, the close full-automatic down filling can be carried out, the labor intensity is reduced, the production efficiency is improved, and the production cost is decreased. The down filling machine has the advantages of reasonable design, simple structure, low cost and good practicability. The down storage box of the down filling machine has stable down output, so that the down filling consistence and the down filling precision are ensured; a weighing process of the weighing boxes is independent, precise and effective; the down filling pipes cannot fill the down to airtight cutting pieces; working conditions of the multiple weighing boxes are alternatively changed and one down filling pipe is used for outputting, so that the down filling efficiency is further improved.
Owner:CHANGSHU BEALEAD AUTO MACHINERY

Optical fiber radio transmission system, transmission device, and reception device

An optical fiber radio transmission system is provided which is capable of considerably improving the received dynamic range of radio signals and, in addition, is capable of optically transmitting radio signals while preventing the deterioration of transmission performance and the loss of linearity of an input signal more easily. A received level detection section 111 detects which one of predetermined levels, i.e., Level I, Level II, and Level III, the received level of a radio signal received by an antenna 400 falls under. A signal control section 112 performs an amplification/attenuation process on the radio signal in accordance with the detected level. A control information sending section 113 superimposes control information indicating the detected level on a primary signal obtained after the amplification/attenuation process. This signal is converted to an optical signal and transmitted. An optical to electrical conversion section 211 converts the optical signal received from a transmitting unit to an electrical signal. A control information extraction section 212 extracts the level from the control information, which has been superimposed on the primary signal. A signal control section 213 performs an amplification/attenuation process on the primary signal in accordance with the extracted level.
Owner:HASE KAZUTOSHI +2
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